155Further review

155  Further review  (1) A review by a reviewing authority does not prevent a further review of the proceedings concerned by the Chief of the Defence Force or a service chief if it appears to the Chief of the Defence Force or the service chief that there are sufficient grounds for a further review.  (2) Subject to subsection (3), the Chief of the Defence Force or a service chief shall conduct a further review under subsection (1) in accordance with this Part and, for that purpose, the Chief of the Defence Force or the service chief shall be deemed to be a reviewing authority.  (3) The Chief of the Defence Force or a service chief shall not commence a review without first obtaining a report on the proceedings from the Judge Advocate General or, if the Judge Advocate General so directs, from a Deputy Judge Advocate General.  (4) The Chief of the Defence Force or a service chief, in making a review, is bound by any opinion on a question of law set out in a report obtained under subsection (3).